Recently, a post about Tims stores using pre-made espresso concentrate to make cold brew coffee sparked heated discussion on social media. Customers saw staff take a black liquid out of the refrigerator and pour it directly into a cup, questioning whether it was really freshly made. However, cold brew coffee itself requires soaking for more than 8 hours in advance, so does this count as "pre-made"? And does a store using frozen concentrate uniformly delivered from a factory meet consumers' expectations for cold brew? Supporters believe this approach ensures consistent quality, while opponents feel it is no different from a convenience store beverage. This article will review the course of the incident, netizens' opinions, and explore the production standards and industry status of cold brew coffee. Front Street Coffee reminds us that no matter the method, the key to a good cup of coffee lies in the control of ingredients and craftsmanship. [more…]

Many coffee enthusiasts have wondered: why do cold brew and iced pour-over made from the same coffee bean taste so different? Front Street Coffee once conducted a comparative experiment with Huakui 8.0, and the results were surprising. This article will systematically analyze the core differences between cold brew coffee and pour-over coffee from the perspectives of extraction water temperature, extraction method, and concentration changes, explaining why low-temperature slow extraction brings a rounder acidity, a fuller body, and a unique fermented aroma, while high-temperature fast extraction retains richer aromatic layers. If you also want to understand the essential difference between these two brewing methods, read on. [more…]

Many coffee enthusiasts at Front Street stores order both a cold brew and an iced pour-over made from the same beans, yet are often surprised by the huge gap in flavor between the two after drinking them. Why does the same coffee bean produce such an obvious difference in the resulting cup? This article will systematically sort out the core differences in brewing principles between cold brew and pour-over from multiple dimensions such as extraction water temperature, extraction method, and concentration differences, and combine a comparative experiment conducted by Front Street using Huakui 8.0 to help you understand the taste expressions brought by low-temperature slow extraction and high-temperature fast extraction, as well as the scientific logic behind these differences. [more…]

When making cold brew coffee, should the grind size be coarse or fine? Many enthusiasts habitually assume that grinding finer will increase the concentration, but in a low-temperature, still-steeping extraction environment, this logic does not necessarily hold. Through practical experiments, Front Street used the same Yirgacheffe beans, the same coffee-to-water ratio, and the same steeping time to make cold brew with fine and coarse grinds respectively, testing the concentration and tasting the flavor differences. The results showed that the coarse grind actually had a slightly higher TDS, and its flavor performance was also brighter and sweeter. This article will explain this phenomenon from the perspectives of water temperature and particle movement, and provide grinding recommendations and applicable conditions for making cold brew coffee, helping you make a cup of cold brew with excellent concentration and flavor. [more…]

The happiness of summer is probably being able to stay indoors, enjoy the air conditioning, and still sip a cup of cold brew coffee that beats the heat. Because it's so easy to make, even those who don't know how to brew coffee can effortlessly whip up a smooth, rich, full-flavored, clean and refreshing iced coffee that's perfect for summer. Another [more…]

When making cold brew coffee, many people habitually apply the grind-setting logic of pour-over—if they want to increase the extraction yield, they grind finer. However, through comparative experiments, Front Street Coffee found that after grinding cold brew coffee finer, the measured concentration was actually lower. The reason behind this is closely related to the extraction method of cold brew, which involves long periods of static steeping. This article will fully analyze this phenomenon and explain the key points to note when adjusting the grind for cold brew coffee. [more…]

The arrival of autumn has cooled the stuffy weather, but many friends in the south can still feel the enthusiasm of the sun at noon. Drinking pour-over coffee in this dry season often leaves the throat feeling parched, and at times like this, ice-cold cold brew coffee becomes everyone's favorite. Some friends may ask about cold brew coffee's [more…]

Before writing this article, Front Street asked several coffee professionals/enthusiasts: "Under normal circumstances, when making cold brew coffee, if you use the same water, coffee beans, amount of coffee grounds, brewing container, and brewing time, how would you increase the extraction concentration of the coffee?" I believe everyone, like the interviewees, would [more…]

Cold brew coffee, with its unique low-temperature slow extraction method, has become a popular drink in the hot summer days. Which coffee beans are actually suitable for making it? And what are the essential differences between it and Americano, which also uses water as a medium? This article starts with the origin of cold brew coffee, sorts out its production process and the principles of pairing it with pastries, and brings Front Street Coffee's cold brew bean recommendations. In addition, through a set of comparative experiments, we explore the differences in concentration and flavor between cold brew coffee made with soda water and purified water, providing coffee lovers with a more comprehensive cold brew guide. [more…]

Cold brew coffee is deeply loved today, but its origins are little known. The earliest documented cold brew coffee comes from the 17th-century Netherlands, when sailors, to cope with long sea voyages, steeped coffee grounds in cold water for over twenty hours to make a concentrate, which both increased the caffeine content and extended shelf life. This method later spread to Japan, where it evolved into drip-style cold brew by combining with the local tradition of cold-brewed tea. When making cold brew, the coffee-to-water ratio is key; Front Street recommends 1:13 for regular drinking and 1:10 for specialty concoctions. In terms of coffee bean selection, medium-light to medium roast beans with prominent acidity, sweetness, or aroma are more suitable. This article will analyze in detail the origins of cold brew, the key points of making it, and recommend several Front Street Coffee beans to help you get started easily. [more…]

In a cup of black coffee, water makes up the vast majority, so its impact on flavor must not be underestimated. Different brands of drinking water vary in mineral composition, hardness, and pH, so the coffee brewed with them naturally takes on different characteristics. To investigate this variable, Front Street Coffee selected four common drinking waters—Baisui Mountain, Nongfu Spring, Ganten, and C'estbon—and used the same Costa Rica Mozart coffee beans to make cold brew, measuring TDS, coffee liquid concentration, and recording flavor performance one by one. The experiment found that the amount of calcium and magnesium ions in water affects extraction efficiency and taste direction, while Nongfu Spring with medium TDS and C'estbon purified water each showed distinct stylistic differences. This article will present the full experimental process and tasting results, and offer water selection suggestions for different taste preferences. [more…]

The taste of coffee does not have only three dimensions—sourness, sweetness, and bitterness. Saltiness also objectively exists in the coffee liquid, but it is usually masked by other flavors. When an obvious salty taste appears in a pour-over, espresso, or cold brew coffee, it often means that there is a problem in one of the links: bean quality, water quality, or brewing parameters. Starting from the daily communication cases of Front Street Coffee, this article sorts out the sources of saltiness in coffee, analyzes the two typical situations of under-extraction and excessively high concentration, and gives judgment methods and directions for parameter adjustment. At the same time, in response to the problem that cold brew coffee tastes too weak, the article also provides bean selection suggestions to help coffee lovers make a cup of cold brew with clear flavor and balanced acidity and sweetness in summer. [more…]

Cold brew coffee is made by steeping coffee grounds in cold water for a long time. Because low-temperature extraction has a high tolerance for error, it usually does not over-extract easily. But in practice, many people still end up with cold brew that has obvious bitterness, muddled flavors, and astringency. The problem often lies in four areas: using hot water for blooming or warm water for steeping, choosing dark-roast beans, steeping for too long, and using too large a coffee-to-water ratio, which leads to too high a concentration. In this article, Front Street breaks down the extraction principles behind these improper practices one by one, and gives specific recommendations for regular water temperature, grind size, coffee-to-water ratio, and steeping time, while also explaining what scenarios the 1:10 and 1:12 ratios are suitable for. If your cold brew also tastes bitter, you may want to troubleshoot by comparing it against these points. Once you find the root cause, you can consistently make a smooth cup of cold brew coffee. [more…]

The refreshing, sweet, or heavy character of cold brew coffee is closely tied to the roast level of the beans. Long, low-temperature extraction softens the acidity and accentuates the aroma and sweetness. When choosing beans, first check whether the packaging says light, medium, or dark roast, then consider whether you want to drink it black, over ice, or with milk—this will make your choice much more [more…]

Recently, a video of a conflict between a Starbucks employee and a customer has drawn attention on social media. In the video, the employee, who refused to sell cold brew concentrate—a semi-finished ingredient—on its own, was fiercely insulted by the customer and nearly came under physical attack. After the incident came to light, netizens expressed sympathy for the employee and discussed topics such as how the brand handles customer complaints and how employee rights are protected. Many current employees also shared similar experiences, pointing out that the company often smooths things over by issuing coupons, which may encourage malicious complaints and leave frontline staff disheartened. [more…]

Cold brew coffee seems like it only requires mixing coffee grounds and water, then letting it steep in the refrigerator to be done. The process is simple, but in practice, quite a few people mess it up. Some end up with cold brew that is both salty and overpowering, tasting like soy sauce — the problem often lies in the parameters. Water temperature, grind size, time, and ratio are the four major variables that determine flavor. This article starts from a typical case of failed cold brew, breaks down the causes of saltiness and excessive strength one by one, and offers Front Street Coffee's recommendations for coffee-to-water ratio, grind particle size distribution, and steeping time used in actual production, to help you consistently make a smooth, delicious pot of cold brew coffee. [more…]

The refreshing, sweet, or full-bodied character of cold brew coffee is closely tied to the roast level of the beans. Long, low-temperature extraction softens the acidity and amplifies the aroma and sweetness profile. When choosing beans, first check the packaging for light, medium, or dark roast, then consider whether you want to drink it black, over ice, or with milk—this will make your choice much more [more…]

Cold brew coffee is left in the refrigerator to extract slowly; on the palate it is usually gentler than hot coffee, and its aromas also unfold in a different order. When choosing beans, the roast level is a very practical clue: light roasts lean toward bright fruit notes, medium roasts make it easier to taste sweetness and balance, while dark roasts bring cocoa, nuts and a rich body. First, decide which kind you want. [more…]

Specialty coffee brand Seesaw recently teamed up with Mengniu's fresh milk brand Daily Fresh to launch a bottled cold brew fresh milk latte. The official claim is that it uses custom cold brew beans, paired with fresh milk from a GAP Grade 1 certified pasture, with an ingredient list that highlights 0 non-dairy creamer, 0 white granulated sugar, and 0 artificial sweeteners, while the sweetness comes from natural monk fruit concentrate. After the product hit the market, online shopping platforms sold it at about 11 yuan per bottle, with a minimum purchase of 3 bottles, prompting many consumers to stock up. However, public opinion is clearly divided: some praise the clean formula of fresh milk plus coffee, while others complain of a traditional Chinese medicine taste, a sticky mouthfeel, and an inexplicable astringency, with the controversy centering on the sweetness brought by monk fruit concentrate. This article reviews the formula, price, and consumer feedback of this new product, and explores the competition and choices in the bottled coffee market. [more…]

Cold brew and ice drip both involve low-temperature, longer extraction, and typically taste gentler than hot coffee on the palate, with aromas becoming more subdued when chilled. When choosing beans, the roast level can serve as a clear guide: light roasts tend to retain fruit and floral notes, medium roasts put sweetness and smoothness at the forefront, while medium-dark roasts suit those who prefer cocoa [more…]